ethylene glycol (HOCH2CH2OH)

Ethylene glycol (HOCH2CH2OH) is a colorless, syrupy liquid, an alcohol,
made from ethene (ethylene). Also known as
ethane-1,2-diol, it is used to make polyester polymers,
and mixed with water, antifreeze and de-icer. Relative molecular mass 62.1,
melting point -12°C, boiling point 198°C.